Weather strip and method of making the same



Nov. 15, 1938. D. H. HARNLY 2,136,687

WEATHER .STRIP AND METHOD 0E MAKING THE SAME Filed Aug. 50, 1957 IIIIIIIIIIIIIIIII" Patented Nov. 15, 1938 PATENT .o1-FICE vWEATHER ST-RIP AND THE Marilouor*'tramite` SAM lDavid H. Harnly, lGliicago, Ill.; 'Willard R. 4liatl'ieny administrator 'of said David I-.

ldeceased Application .August 30,

4 Claims.

r'Ilhis invention relates :to a weather strip and a ymetlfiod vof making :the same.

It is an object of 'this invention to provide `a deflectable weather .strip "that .is adapted for use in connection with .swinging windows, doors .or closure `members that have a relatively .narrow Width.

It is a further object of this invention to provide a weather strip :in which the 'free contact or l: sealing portion :will .be held .more rigidly at an angle and attra `greater angle', and occupy less space than `is possible v.in the construction -disclosed in my pending application, ISerial No. 127,006, filed. February 23, i937. In accordance with this invention, I use sponge rubber weather strips with backings of fabric or thexlike vulcanized upon the side .faces that `produce excellent resiliency for deiie'cting purposes. Iitlre'n :bevel or cut on. a biaszthe lower rear Ymargin .of the Weather strip and support such weather strip upon such bevel or slope in connection with a supporting member, so that the free contact or sealing portion will extend at an angle to such supporting member. I then apply a clamp upon the top of the rear margin of the weather strip, directly over the beveled portion, and tightly screw or bolt the clamp down and compress the beveled portion so that the clamp assumes a substantially parallel relation with the supporting member. By thuswise applying the clamp, there will be a strong oblique tension produced in the strip that will cause the free sealing portion or flap to assume a greater angle with the supporting member than the one produced by the bevel.

The invention comprises the novel structure and combination of parts hereinafter described and more particularly pointed out and defined in the appended claims.

In the accompanying drawing which illustrates a preferred form of this invention, and in which similar reference numerals refer to similar features in the different Views:

Figure 1 is an elevational view of a swinging or hinged window or closure member equipped with a weather proong structure involving this invention.

Figure 2 is an enlarged broken sectional View o taken upon the line II-II of Figure 1, looking ln the direction of the arrows.

Figure 3 is an enlarged broken sectional view taken upon the line III-III of Figure 1, looking in the direction of the arrows.

Figure 4 is a fragmentary perspective view of Harnly,

1937, Serial No. 161,593

(Ul. L20-'69.)

a weather strip ksupported upon its beveled edge before the clamp is applied.

Figure 5 is a view similar to Figure 4 with the clamping strip applied.

Iny connection `with this invention,` there is illustrated` in the `dra-Wing a Window frame I in which a window 2 is `hinged as by hinges 2a. The weather strips involving this invention are adapted to lbe attached to the-'side sash members 3 of the window and upo'n the top and bottom sash members yll. It is obvious that the weather strips 'may be requally Well applied upon the corresponding members of the door frame I.

The weather strips, which aregpreferably cut to suitable lengths in accordance with the length and width of the window, consist of substantially fiat sponge rubberstrips 5 with a `fabric backing 6 or other sui-tablematerial vulcanized upon the side faces thereof to impart more vresiliency thereto; The lower or Lunder rear ymargin of each strip is beveled to form an oblique base or supporting surface 1, which is free of fabric backing. While this bevel 'l is shown as a straight flat cut, it may be variously formed so as to give an initial slope to the free sealing portion When -the strip is in position to be secured in place.

` In Figure 4, there is shown a weather strip 6 supported upon its bevel 1 and positioned against a sash portion 3 of the window. It will be noted that by thuswise positioning the weather strip upon its bevel, the free contact or sealing portion initially extends at an angle to such sash member.

While the weather strip is supported upon its beveled portion, a rigid, flat clamping member 8, which is preferably formed of metal, is superposed over the longitudinal rear margin of the strip directly over the beveled portion 1. This clamping strip should be of suitable Width in accordance with the width of the beveled portion 1, so that it will compress the beveled portion for the greater part of its width, as shown in Figure 5. When the clamping strip 8 has been properly superposed upon the weather strip 5, it is tightly clamped down by means of screws 9 extending through the clamping strip, the Weather strip, and into the window sash 3.

The strips 8 are thus clamped down to assume a substantially parallel relation with the sash member 3, as shown in Figure 5. As the clamping strip 8 is clamped down, the forward part of the beveled portion, owing to its greater thickness, will be compressed a great deal more than the rear part. 'Ihe tension under which the upper fabric 6 is placed by this 'clamping operation causes the free sealing portion to assume a greater angle than the initial angle caused by supporting the weather strip upon its bevel, as is evident from a comparison of Figures 4 and 5.

The Weather strips are similarly attached to the sides and upper and lower sash members of the window, so that when the Window is in closed position the sealing portions ofthe Weather strips will be deected, instead of compressed.

It will be appreciated that as the sealing portion of a weather strip is deflected to a point where it assumes its initial angle shown in Figure 4, it will offer a slightly greater resistance and thus cause a better sealing relation with the adjacent sash member of the window.

I am aware that many changes may be'made and numerous details of construction may be varied through a wide range Without departing from the principles of this invention, and I, therefore, do not purpose limiting the patent granted hereon otherwise than is necessitated by the prior art. f

I claim as my invention:

l. In a Weather proong structure, a resilient and flat weather strip having its lower rear margin beveled for forming a beveled surface thereon, a base member, said Weather strip being supported with its beveled surface against said base member and the free portion extending at an angle to the base member, a top clamping member extending longitudinally along the rear top margin of said strip and over Ysaid beveled portion, and means for clamping said top clamping member against said beveled portion and bringing said top clamping member into substantial parallel relation with saidbase member for compressing said bevelled portion and causing the free sealing portion' to assume a greater angle than the rst mentioned angle.

2. In a weather proong structure,Y a resilient flat Weather strip having its lower rear margin beveled, clamping means for said rear beveled margin comprising a base member, said Weather strip having its beveled surface positioned against said base member and a top clamping member extending longitudinally over the top of the rear margin and over said beveled portion of said weather strip, and means for tightly clamping said top clamping member against said beveled portion for compressing the same and causing oblique tension thereon for causing the free sealing portion to be elevated at an angle from its initial position.

3. In a weather proofing structure, a flat strip of sponge rubber having fabric backing upon its side faces and a rear beveled margin forming a beveled surface, clamping means for said beveled margin comprising a base portion and a top portion, said strip being clamped between said base portion and top portion with its beveled surface in Contact with said base portion, said beveled' portion being compressed by said clamping means to bring said clamping portions into a substantial parallel relation and causing the free sealing portion of said strip to move and be maintained at a greater angle with respect to said base portion than the angle caused by said beveled surface.

4. In a weather prooiing structure, a resilient flat strip having its lower rear margin cut on a bevel, clamping means therefor comprising a base portion and a top portion, said strip having its bevelled portion positioned against said base portion and between said base and top portions and means clamping said top portion upon said base portion into substantial parallel relation and compressing said bevelled portion and causing the free portion of said strip to assume a greater angle than that caused by the bevelled portion.

DAVID H. HARNLY. 

